Western Sydney maintained their undefeated record against Perth with a 3-0 victory that ends any hope Glory had of an A-League finals spot.

Perth have never managed to overcome the Wanderers in five previous encounters, with Sunday's loss and a 10th week without a win leaving them 10 points adrift of the top six with three games remaining.

Anchored to the bottom, Glory are now left playing for pride, desperate to avoid the dreaded wooden spoon.

The Wanderers ended their three-game winless run with goals from Jerome Polenz, Mark Bridge and Tomi Juric at Parramatta Stadium to reclaim second spot on the ladder.

With his side playing their fifth game in 15 days, coach Tony Popovic made nine changes to the side that started Wednesday's Asian Champions victory over Kawasaki Frontale.

Wanderers winger Youssouf Hersi created the first chance of the match 14 minutes in, putting Glory goalkeeper Jack Duncan to work with his header off a Shannon Cole cross.

Hersi was at it again less than a minute later, this time using his feet to draw a save from Duncan. And the Dutchman wasn't going away, weaving through the Perth defence to put the keeper to action again in the first half.

It was Polenz who finally broke through in the 42nd minute, his right-footed strike giving the hosts the lead just before the break.

While Duncan had his work cut out, his Wanderers counterpart Ante Covic was relatively untroubled, with Jamie MaClaren forcing his first save in the 53rd minute.

The next chance of the match came from Bridge and the Wanderers striker made it count, putting Western Sydney 2-0 up in the 61st minute.

Juric put the result beyond doubt, netting the Wanderers's third goal in the 78th minute just moments after coming on as a substitute.

Hersi kept Duncan on his toes until the final whistle, denied by the keeper for the fifth time in the dying minutes.